He could send enough electricity to light up not just one arc light, but eight.

他发出的电能足以点亮一盏弧光灯， 而八盏。

An arc light makes light when an electric current jumps across the space between two carbon rods.

当电流跃过两个碳的空时， 弧光灯就会发光。

Tom was eager to see how the man in Connecticut was using electricity to light up his eight arc lights.

姆很想看看康涅狄格州的那个何用电来点亮他的八盏弧光灯的。

After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.

他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，象树干似的向上长着，与洞顶悬挂下来的钟乳石相接。